Re: [DMM] Tentacles Tactics
Nice going, you really shouldn't have much trouble until maybe Maya (I think the generic bazooka grunts are introduced there, and they are a pain in the ass even with Jeanne

), and definitely Hajune (purple haired demonish girl), because there begins the SR spamming. Not fun dealing with Realizer, sometimes even two of them together, plus shield knights and Shadmalice who get attack bonus if you use Elfellas.
If you got De-menshia, she will murder everything in Maya's stage. For Hajune...hard to say, I only use 5 cards to utterly destroy everything there but 2 of them are a SR unit I luckily got a long time ago on the gacha and there's no other way to get it (always forget her name, but she has long range, AoE, shield piercing, burning attack

). Using Revoica and Wizarda combo is a good idea, Revoica gets bonus attack when Hajune is among the enemies and Wizarda gets a insane boost (for a N card) when Revoica is in your team. That should be good enough, the problem are the Realizers that will take down all your weak units with one blow. I wouldn't use anything long range unless it has piercing attribute. Try using space units, they are good against dimension units.
Edit: finally the maintenance is done and now the event stages cost half ST, so maybe now it's better to stick to Revoica's 5th sub stage? Costs 2 ST, so it's just 1 ST for 2 more tickets. Maybe needs a bit more time to finish but it's better xp and money =/